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import pandas as pd
import numpy as np
r1 = np.arange(0, 18, 2)
r1
array([ 0,  2,  4,  6,  8, 10, 12, 14, 16])
ser = pd.Series(r1)
ser
0     0
1     2
2     4
3     6
4     8
5    10
6    12
7    14
8    16
dtype: int32
df = pd.DataFrame(r1.reshape(3, 3),columns=['A', 'B', 'C'])